Minson's mother told authorities she had not seen or heard from him since Sept. 9, when he left with some friends.

Police said Minson had been living with his mother in Casco since the crash.

No charges have been filed in the crash, which is still being investigated.

“He’s the subject of an investigation, so as much as needed we’ve been keeping tabs on it. In other words, if we’ve needed to question him or to obtain finger prints or DNA or whatever. But it’s not necessarily focusing on him because the charges are being weighted with the district attorney’s office,” said Kevin Joyce of the sheriff’s department.

Auburn police said they are also looking for Minson. Officials said he has connections in the Auburn area and anyone with information should call police.